18=-4x+42

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Solution for 18=-4x+42 equation:


Simplifying
18 = -4x + 42

Reorder the terms:
18 = 42 + -4x

Solving
18 = 42 + -4x

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '4x' to each side of the equation.
18 + 4x = 42 + -4x + 4x

Combine like terms: -4x + 4x = 0
18 + 4x = 42 + 0
18 + 4x = 42

Add '-18' to each side of the equation.
18 + -18 + 4x = 42 + -18

Combine like terms: 18 + -18 = 0
0 + 4x = 42 + -18
4x = 42 + -18

Combine like terms: 42 + -18 = 24
4x = 24

Divide each side by '4'.
x = 6

Simplifying
x = 6

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